Please stop giving medical advice if you aren't a doctor
And please quit getting medical advice from random people online.
If you're a random person giving medical advice online: just stop.
If you really need to know something and can't get to your own healthcare provider, visit r/askdocs.
Sharing anecdotes can be very beneficial: telling people to do something other than go see a medical professional is not helpful.
Edit: Yes, people are posting medical advice.
Post from today.
PSA: Get titers done for EVERYTHING
Titers don't really confirm anything about immunity, just that you have antibodies and have been exposed to a disease. can be helpful for some folks. However, they aren't critically necessary for everyone. Again, talk to your provider.
Do Adults Need a Measles Titer Check?
Multiple people in the comments who can't afford them and are now trying to figure out how to pay for something that they don't may not need because OP gave bad medical advice they weren't qualified to.